CVE-2014-6491

Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier and 5.6.20 and earlier allows...

7.5 HighFix available

Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier and 5.6.20 and earlier allows remote attackers to affect confidentiality, integrity, and availability via vectors related to SERVER:SSL:yaSSL, a different vulnerability than CVE-2014-6500.

Exploit likelihood

5.70%Up 3.7 points since Feb 4, 2022

What each source reports

NVD Score used 7.5

Record: CVE-2014-6491
CVSS 2.0: 7.5 HighAV:N/AC:L/Au:N/C:P/I:P/A:P
Updated: 2026-11-02

CVE List No score

Record: CVE-2014-6491
Updated: 2026-11-02

EUVDEUVD-2014-6370 No score

Record: EUVD-2014-6370
Updated: 2026-11-03

GitHub AdvisoriesGHSA-6q53-8mfq-w3mv No score

Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier and 5.6.20 and earlier allows...

Record: GHSA-6q53-8mfq-w3mv
Updated: 2026-11-02

OSVMGASA-2014-0424 No score

Updated mariadb packages fix security vulnerabilities

This update provides MariaDB 5.5.40, which fixes several security issues and other bugs.

Record: MGASA-2014-0424
Updated: 2026-11-02

OSVSUSE-SU-2015:0620-1 No score

Security update for MySQL

This MySQL update provides the following:

* upgrade to version 5.5.39, [bnc#887580]
* CVE's fixed: CVE-2014-2484, CVE-2014-4258, CVE-2014-4260,
  CVE-2014-2494, CVE-2014-4238, CVE-2014-4207, CVE-2014-4233,
  CVE-2014-4240, CVE-2014-4214, CVE-2014-4243

Security Issues:

* CVE-2014-2484
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2484>
* CVE-2014-4258
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4258>
* CVE-2014-4260
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4260>
* CVE-2014-2494
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2494>
* CVE-2014-4238
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4238>
* CVE-2014-4207
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4207>
* CVE-2014-4233
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4233>
* CVE-2014-4240
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4240>
* CVE-2014-4214
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4214>
* CVE-2014-4243
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4243>

Record: SUSE-SU-2015:0620-1
Updated: 2026-11-02

Show 5 moreShow less

OSVSUSE-SU-2015:0743-1 No score

Security update for mariadb

mariadb was updated to version 10.0.16 to fix 40 security issues.

These security issues were fixed:

CVE-2015-0411: Unspecified vulnerability in Oracle MySQL Server 5.5.40 and earlier, and 5.6.21 and earlier, allowed remote attackers to affect confidentiality, integrity, and availability via unknown vectors related to Server : Security : Encryption (bnc#915911).
CVE-2015-0382: Unspecified vulnerability in Oracle MySQL Server 5.5.40 and earlier and 5.6.21 and earlier allowed remote attackers to affect availability via unknown vectors related to Server : Replication, a different vulnerability than CVE-2015-0381 (bnc#915911).
CVE-2015-0381: Unspecified vulnerability in Oracle MySQL Server 5.5.40 and earlier and 5.6.21 and earlier allowed remote attackers to affect availability via unknown vectors related to Server : Replication, a different vulnerability than CVE-2015-0382 (bnc#915911).
CVE-2015-0432: Unspecified vulnerability in Oracle MySQL Server 5.5.40 and earlier allowed remote authenticated users to affect availability via vectors related to Server : InnoDB : DDL : Foreign Key (bnc#915911).
CVE-2014-6568: Unspecified vulnerability in Oracle MySQL Server 5.5.40 and earlier, and 5.6.21 and earlier, allowed remote authenticated users to affect availability via vectors related to Server : InnoDB : DML (bnc#915911).
CVE-2015-0374: Unspecified vulnerability in Oracle MySQL Server 5.5.40 and earlier and 5.6.21 and earlier allowed remote authenticated users to affect confidentiality via unknown vectors related to Server : Security : Privileges : Foreign Key (bnc#915911).
CVE-2014-6507: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier, and 5.6.20 and earlier, allowed remote authenticated users to affect confidentiality, integrity, and availability via vectors related to SERVER:DML (bnc#915912).
CVE-2014-6491: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier and 5.6.20 and earlier allowed remote attackers to affect confidentiality, integrity, and availability via vectors related to SERVER:SSL:yaSSL, a different vulnerability than CVE-2014-6500 (bnc#915912).
CVE-2014-6500: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier, and 5.6.20 and earlier, allowed remote attackers to affect confidentiality, integrity, and availability via vectors related to SERVER:SSL:yaSSL, a different vulnerability than CVE-2014-6491 (bnc#915912).
CVE-2014-6469: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and eariler and 5.6.20 and earlier allowed remote authenticated users to affect availability via vectors related to SERVER:OPTIMIZER (bnc#915912).
CVE-2014-6555: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier and 5.6.20 and earlier allowed remote authenticated users to affect confidentiality, integrity, and availability via vectors related to SERVER:DML (bnc#915912).
CVE-2014-6559: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier, and 5.6.20 and earlier, allowed remote attackers to affect confidentiality via vectors related to C API SSL CERTIFICATE HANDLING (bnc#915912).
CVE-2014-6494: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier, and 5.6.20 and earlier, allowed remote attackers to affect availability via vectors related to CLIENT:SSL:yaSSL, a different vulnerability than CVE-2014-6496 (bnc#915912).
CVE-2014-6496: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier, and 5.6.20 and earlier, allowed remote attackers to affect availability via vectors related to CLIENT:SSL:yaSSL, a different vulnerability than CVE-2014-6494 (bnc#915912).
CVE-2014-6464: Unspecified vulnerability in Oracle MySQL Server 5.5.39 and earlier and 5.6.20 and earlier allowed remote authenticated users to affect availability via vectors related to SERVER:INNODB DML FOREIGN KEYS (bnc#915912).
CVE-2010-5298: Race condition in the ssl3_read_bytes function in s3_pkt.c in OpenSSL through 1.0.1g, when…

Record: SUSE-SU-2015:0743-1
Updated: 2026-11-02

OSVSUSE-SU-2015:0946-1 No score

Security update for MySQL

This MySQL update provides the following:

* upgrade to version 5.5.39, [bnc#887580]
* CVE's fixed: CVE-2014-2484, CVE-2014-4258, CVE-2014-4260,
  CVE-2014-2494, CVE-2014-4238, CVE-2014-4207, CVE-2014-4233,
  CVE-2014-4240, CVE-2014-4214, CVE-2014-4243

Security Issues:

* CVE-2014-2484
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2484>
* CVE-2014-4258
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4258>
* CVE-2014-4260
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4260>
* CVE-2014-2494
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2494>
* CVE-2014-4238
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4238>
* CVE-2014-4207
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4207>
* CVE-2014-4233
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4233>
* CVE-2014-4240
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4240>
* CVE-2014-4214
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4214>
* CVE-2014-4243
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4243>

Record: SUSE-SU-2015:0946-1
Updated: 2026-11-02

OSVSUSE-SU-2015:1177-1 No score

Security update for MySQL

This MySQL update provides the following:

* upgrade to version 5.5.39, [bnc#887580]
* CVE's fixed: CVE-2014-2484, CVE-2014-4258, CVE-2014-4260,
  CVE-2014-2494, CVE-2014-4238, CVE-2014-4207, CVE-2014-4233,
  CVE-2014-4240, CVE-2014-4214, CVE-2014-4243

Security Issues:

* CVE-2014-2484
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2484>
* CVE-2014-4258
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4258>
* CVE-2014-4260
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4260>
* CVE-2014-2494
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2494>
* CVE-2014-4238
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4238>
* CVE-2014-4207
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4207>
* CVE-2014-4233
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4233>
* CVE-2014-4240
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4240>
* CVE-2014-4214
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4214>
* CVE-2014-4243
  <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-4243>

Record: SUSE-SU-2015:1177-1
Updated: 2026-11-02

OSVUBUNTU-CVE-2014-6491 No score

Record: UBUNTU-CVE-2014-6491
Updated: 2026-11-02

OSVUSN-2384-1 No score

mysql-5.5 vulnerabilities

Multiple security issues were discovered in MySQL and this update includes a new upstream MySQL version to fix these issues. MySQL has been updated to 5.5.40.

In addition to security fixes, the updated packages contain bug fixes, new features, and possibly incompatible changes.

Please see the following for more information: http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-39.html http://dev.mysql.com/doc/relnotes/mysql/5.5/en/news-5-5-40.html http://www.oracle.com/technetwork/topics/security/cpuoct2014-1972960.html

Record: USN-2384-1
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`mysql-5.5` Debian:7	before 5.5.40-0+wheezy1, plus listed versions 5.5.30+dfsg-1.15.5.31+dfsg-0+wheezy15.5.31+dfsg-15.5.33+dfsg-0+wheezy15.5.33+dfsg-1 Show 7 moreShow less 5.5.35+dfsg-0+wheezy15.5.35+dfsg-15.5.35+dfsg-25.5.37-0+wheezy15.5.37-15.5.38-0+wheezy15.5.39-1	5.5.40-0+wheezy1
`mariadb` Mageia:3	before 5.5.40-1.mga3	5.5.40-1.mga3
`mariadb` Mageia:4	before 5.5.40-1.mga4	5.5.40-1.mga4
`mariadb` SUSE:Linux Enterprise Desktop 12	before 10.0.16-15.1	10.0.16-15.1
`mariadb` SUSE:Linux Enterprise Software Development Kit 12	before 10.0.16-15.1	10.0.16-15.1
`mariadb` SUSE:Linux Enterprise Server 12	before 10.0.16-15.1	10.0.16-15.1
`mariadb` SUSE:Linux Enterprise Server for SAP Applications 12	before 10.0.16-15.1	10.0.16-15.1
`mariadb` SUSE:Linux Enterprise Workstation Extension 12	before 10.0.16-15.1	10.0.16-15.1
`mariadb-5.5` Ubuntu:14.04:LTS	before 5.5.40-0ubuntu0.14.04.1, plus listed versions 5.5.32-1ubuntu15.5.35-1ubuntu15.5.36-15.5.37-0ubuntu0.14.04.15.5.39-0ubuntu0.14.04.1	5.5.40-0ubuntu0.14.04.1
`mysql-5.5` Ubuntu:14.04:LTS	before 5.5.40-0ubuntu0.14.04.1, plus listed versions 5.5.32-0ubuntu75.5.34-0ubuntu15.5.34-0ubuntu25.5.35-0ubuntu15.5.35+dfsg-1ubuntu15.5.37-0ubuntu0.14.04.15.5.38-0ubuntu0.14.04.1	5.5.40-0ubuntu0.14.04.1
`mysql-5.6` Ubuntu:14.04:LTS	before 5.6.27-0ubuntu0.14.04.1, plus listed versions 5.6.15-0ubuntu15.6.15-1~exp25.6.16-1~exp15.6.17-0ubuntu0.14.04.15.6.19-0ubuntu0.14.04.1	5.6.27-0ubuntu0.14.04.1

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-6491 is a high vulnerability (CVSS 7.5) in Oracle Mysql, published August 19, 2014. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.70%, the 93rd percentile. Fixed in mysql-5.5 5.5.40-0+wheezy1.

References

Show 194 moreShow less

This page doesn't list everything

Left out here: 10 references and the rest of 1 source description. The JSON record has them.